The unit of Wien’s constant b is:
- A. Wm⁻²K⁻⁴
- B. m⁻¹K⁻¹
- C. Wm²
- D. mK
The unit of Wien’s constant b is:
- A. Wm⁻²K⁻⁴
- B. m⁻¹K⁻¹
- C. Wm²
- D. mK
Aniket Singh , 8 Months ago
Grade
11 grade physics others> The unit of Wien’s constant b is: A...
1 AnswersAskiitians Tutor Team
Wien's displacement constant, often denoted as b, is a key concept in thermodynamics and blackbody radiation. It relates the temperature of a blackbody to the wavelength at which its emission is maximized.
Understanding the Units
The unit of Wien's constant can be derived from the formula:
- Wien's Law: λ_max = b/T
In this equation:
- λ_max is the peak wavelength (in meters, m)
- T is the absolute temperature (in Kelvin, K)
Analyzing the Options
To find the unit of b, we can rearrange the formula:
- b = λ_max × T
Thus, the units of b are:
- λ_max: meters (m)
- T: Kelvin (K)
Combining these gives us:
- Units of b = m × K = mK
Final Answer
Therefore, the correct unit of Wien’s constant b is mK.
Approved Last Activity: 8 Months ago
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